Sun	Mon	Tue	Wed	Thu	Fri	Sat
23	24	25	26	27	28	1
2	3	4	5	6	7	8
9	10	11	12	13	14	15
16	17	18	19	20	21	22
23	24	25	26	27	28	29
30	31	1	2	3	4	5

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Multiple Choice Questions

A and B each working alone can do a work in 12 and 36 days respectively They started the work togeth...........

Quantitative Aptitude(IBPS CL) Time and work

A and B each working alone can do a work in 12 and 36 days respectively. They started the work together but A left after sometime and B finished the remaining work in 4 days. After how many days from the start did A leave?

10 days

8 days

12 days

3 days

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Explanation:

Solution:
A 12 3unit(A’s work)
B 36 1unit(B’s work) Both Lcm 36 (whole work)
B work 1 unit per day then for 4 days 4unit.
remaining 36-4=32 unit left that done by both A and B
Both work unit (3+1) 4 ==>32/4===>8days.

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